Industrial pipeline fan-shaped blind valve manual hydraulic drive cut-off isolation

Description :

Fan shaped blind plate valve is a commonly used cutting device in industrial pipeline systems, mainly used for reliable isolation of media such as gas, air, and flue gas. The valve adopts a fan-shaped structure design, which achieves opening and closing actions through the rotation and translation of the valve plate. In the closed state, the valve plate completely blocks the flow of the medium, forming a physical barrier to ensure maintenance safety. Compared to ordinary butterfly valves or gate valves, blind plate valves can provide higher sealing reliability, especially suitable for working environments that require absolute shut-off.

The driving methods are usually divided into three types: manual, electric, and hydraulic. The manual fan-shaped blind plate valve has a simple structure and is easy to maintain, making it suitable for situations with small diameters or low operating frequencies. Hydraulic drive is suitable for large-diameter valves, providing greater thrust and ensuring that the valve plate can move smoothly even under high pressure differentials. Electric actuators can achieve remote control and automation integration, meeting the needs of modern factories for intelligent management. Users can choose the appropriate driver configuration based on the actual on-site conditions.

The valve body material is often made of carbon steel, stainless steel, or cast iron, depending on the characteristics of the medium and the working temperature. The sealing surface is made of hard alloy or flexible graphite material, which has good wear resistance and corrosion resistance. The fan-shaped structure reduces friction during the opening and closing process of the valve, extending the service life of the seal. The internal flow channel of the valve body is designed to be smooth, reducing medium resistance and energy consumption. The overall structure is compact, occupying small space, and easy to install and maintain in narrow pipelines.

During installation, attention should be paid to the flatness of the flange connection surface to ensure that the sealing gasket is evenly compressed. Regularly add lubricating grease to the screw and bearing parts to keep the transmission components flexible. Check the sealing surface for scratches or wear, and if necessary, grind and repair it. For valves that are not operated for a long time, it is recommended to conduct regular full stroke switch tests to prevent component jamming. This equipment is widely used in gas transmission pipelines in industries such as metallurgy, chemical engineering, and power, and is an important component for ensuring production safety.

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